; -*-Scheme-*-

;************************************************************************/
;*                                                                      */
;* Copyright (c) 2003-2009 Vladimir Tsichevski <tsichevski@gmail.com>   */
;*                                                                      */
;* This file is part of bigloo-lib (http://bigloo-lib.sourceforge.net)  */
;*                                                                      */
;* This library is free software; you can redistribute it and/or        */
;* modify it under the terms of the GNU Lesser General Public           */
;* License as published by the Free Software Foundation; either         */
;* version 2 of the License, or (at your option) any later version.     */
;*                                                                      */
;* This library is distributed in the hope that it will be useful,      */
;* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU    */
;* Lesser General Public License for more details.                      */
;*                                                                      */
;* You should have received a copy of the GNU Lesser General Public     */
;* License along with this library; if not, write to the Free Software  */
;* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 */
;* USA                                                                  */
;*                                                                      */
;************************************************************************/

;; Cacheing nodes based on DNs
(module
 cache-node
 (export
  (make-cache get-key::procedure make::procedure)
  ))

(define(make-cache get-key make)
  (let((ht (make-hashtable)))
    (lambda args
      (match-case args
		  ((?key)
		   (or (hashtable-get ht key)
		       (let((node (make key)))
			 (hashtable-put! ht key node)
			node)))
		  ((?key remove)
		   (hashtable-remove! ht key))
		  ((?key insert ?o)
		   (hashtable-put! ht key o))))))
;;(define lookup1(make-cache car list))
;;(eq?(lookup "asdf")(lookup1 "asdf"))
;;(make-ldap-node "asdf")
